Good joke ))))))))) 2015-08-21 2:06 GMT+03:00 Samuel Just <sj...@redhat.com>:
> Certainly, don't reproduce this with a cluster you care about :). > -Sam > > On Thu, Aug 20, 2015 at 4:02 PM, Samuel Just <sj...@redhat.com> wrote: > > What's supposed to happen is that the client transparently directs all > > requests to the cache pool rather than the cold pool when there is a > > cache pool. If the kernel is sending requests to the cold pool, > > that's probably where the bug is. Odd. It could also be a bug > > specific 'forward' mode either in the client or on the osd. Why did > > you have it in that mode? > > -Sam > > > > On Thu, Aug 20, 2015 at 3:58 PM, Voloshanenko Igor > > <igor.voloshane...@gmail.com> wrote: > >> We used 4.x branch, as we have "very good" Samsung 850 pro in > production, > >> and they don;t support ncq_trim... > >> > >> And 4,x first branch which include exceptions for this in libsata.c. > >> > >> sure we can backport this 1 line to 3.x branch, but we prefer no to go > >> deeper if packege for new kernel exist. > >> > >> 2015-08-21 1:56 GMT+03:00 Voloshanenko Igor < > igor.voloshane...@gmail.com>: > >>> > >>> root@test:~# uname -a > >>> Linux ix-s5 4.0.4-040004-generic #201505171336 SMP Sun May 17 17:37:22 > UTC > >>> 2015 x86_64 x86_64 x86_64 GNU/Linux > >>> > >>> 2015-08-21 1:54 GMT+03:00 Samuel Just <sj...@redhat.com>: > >>>> > >>>> Also, can you include the kernel version? > >>>> -Sam > >>>> > >>>> On Thu, Aug 20, 2015 at 3:51 PM, Samuel Just <sj...@redhat.com> > wrote: > >>>> > Snapshotting with cache/tiering *is* supposed to work. Can you > open a > >>>> > bug? > >>>> > -Sam > >>>> > > >>>> > On Thu, Aug 20, 2015 at 3:36 PM, Andrija Panic > >>>> > <andrija.pa...@gmail.com> wrote: > >>>> >> This was related to the caching layer, which doesnt support > >>>> >> snapshooting per > >>>> >> docs...for sake of closing the thread. > >>>> >> > >>>> >> On 17 August 2015 at 21:15, Voloshanenko Igor > >>>> >> <igor.voloshane...@gmail.com> > >>>> >> wrote: > >>>> >>> > >>>> >>> Hi all, can you please help me with unexplained situation... > >>>> >>> > >>>> >>> All snapshot inside ceph broken... > >>>> >>> > >>>> >>> So, as example, we have VM template, as rbd inside ceph. > >>>> >>> We can map it and mount to check that all ok with it > >>>> >>> > >>>> >>> root@test:~# rbd map > >>>> >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5 > >>>> >>> /dev/rbd0 > >>>> >>> root@test:~# parted /dev/rbd0 print > >>>> >>> Model: Unknown (unknown) > >>>> >>> Disk /dev/rbd0: 10.7GB > >>>> >>> Sector size (logical/physical): 512B/512B > >>>> >>> Partition Table: msdos > >>>> >>> > >>>> >>> Number Start End Size Type File system Flags > >>>> >>> 1 1049kB 525MB 524MB primary ext4 boot > >>>> >>> 2 525MB 10.7GB 10.2GB primary lvm > >>>> >>> > >>>> >>> Than i want to create snap, so i do: > >>>> >>> root@test:~# rbd snap create > >>>> >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>>> >>> > >>>> >>> And now i want to map it: > >>>> >>> > >>>> >>> root@test:~# rbd map > >>>> >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>>> >>> /dev/rbd1 > >>>> >>> root@test:~# parted /dev/rbd1 print > >>>> >>> Warning: Unable to open /dev/rbd1 read-write (Read-only file > system). > >>>> >>> /dev/rbd1 has been opened read-only. > >>>> >>> Warning: Unable to open /dev/rbd1 read-write (Read-only file > system). > >>>> >>> /dev/rbd1 has been opened read-only. > >>>> >>> Error: /dev/rbd1: unrecognised disk label > >>>> >>> > >>>> >>> Even md5 different... > >>>> >>> root@ix-s2:~# md5sum /dev/rbd0 > >>>> >>> 9a47797a07fee3a3d71316e22891d752 /dev/rbd0 > >>>> >>> root@ix-s2:~# md5sum /dev/rbd1 > >>>> >>> e450f50b9ffa0073fae940ee858a43ce /dev/rbd1 > >>>> >>> > >>>> >>> > >>>> >>> Ok, now i protect snap and create clone... but same thing... > >>>> >>> md5 for clone same as for snap,, > >>>> >>> > >>>> >>> root@test:~# rbd unmap /dev/rbd1 > >>>> >>> root@test:~# rbd snap protect > >>>> >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>>> >>> root@test:~# rbd clone > >>>> >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>>> >>> cold-storage/test-image > >>>> >>> root@test:~# rbd map cold-storage/test-image > >>>> >>> /dev/rbd1 > >>>> >>> root@test:~# md5sum /dev/rbd1 > >>>> >>> e450f50b9ffa0073fae940ee858a43ce /dev/rbd1 > >>>> >>> > >>>> >>> .... but it's broken... > >>>> >>> root@test:~# parted /dev/rbd1 print > >>>> >>> Error: /dev/rbd1: unrecognised disk label > >>>> >>> > >>>> >>> > >>>> >>> ========= > >>>> >>> > >>>> >>> tech details: > >>>> >>> > >>>> >>> root@test:~# ceph -v > >>>> >>> ceph version 0.94.2 (5fb85614ca8f354284c713a2f9c610860720bbf3) > >>>> >>> > >>>> >>> We have 2 inconstistent pgs, but all images not placed on this > pgs... > >>>> >>> > >>>> >>> root@test:~# ceph health detail > >>>> >>> HEALTH_ERR 2 pgs inconsistent; 18 scrub errors > >>>> >>> pg 2.490 is active+clean+inconsistent, acting [56,15,29] > >>>> >>> pg 2.c4 is active+clean+inconsistent, acting [56,10,42] > >>>> >>> 18 scrub errors > >>>> >>> > >>>> >>> ============ > >>>> >>> > >>>> >>> root@test:~# ceph osd map cold-storage > >>>> >>> 0e23c701-401d-4465-b9b4-c02939d57bb5 > >>>> >>> osdmap e16770 pool 'cold-storage' (2) object > >>>> >>> '0e23c701-401d-4465-b9b4-c02939d57bb5' -> pg 2.74458f70 (2.770) > -> up > >>>> >>> ([37,15,14], p37) acting ([37,15,14], p37) > >>>> >>> root@test:~# ceph osd map cold-storage > >>>> >>> 0e23c701-401d-4465-b9b4-c02939d57bb5@snap > >>>> >>> osdmap e16770 pool 'cold-storage' (2) object > >>>> >>> '0e23c701-401d-4465-b9b4-c02939d57bb5@snap' -> pg 2.793cd4a3 > (2.4a3) > >>>> >>> -> up > >>>> >>> ([12,23,17], p12) acting ([12,23,17], p12) > >>>> >>> root@test:~# ceph osd map cold-storage > >>>> >>> 0e23c701-401d-4465-b9b4-c02939d57bb5@test-image > >>>> >>> osdmap e16770 pool 'cold-storage' (2) object > >>>> >>> '0e23c701-401d-4465-b9b4-c02939d57bb5@test-image' -> pg > 2.9519c2a9 > >>>> >>> (2.2a9) > >>>> >>> -> up ([12,44,23], p12) acting ([12,44,23], p12) > >>>> >>> > >>>> >>> > >>>> >>> Also we use cache layer, which in current moment - in forward > mode... > >>>> >>> > >>>> >>> Can you please help me with this.. As my brain stop to understand > >>>> >>> what is > >>>> >>> going on... > >>>> >>> > >>>> >>> Thank in advance! > >>>> >>> > >>>> >>> > >>>> >>> > >>>> >>> > >>>> >>> > >>>> >>> _______________________________________________ > >>>> >>> ceph-users mailing list > >>>> >>> ceph-users@lists.ceph.com > >>>> >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>>> >>> > >>>> >> > >>>> >> > >>>> >> > >>>> >> -- > >>>> >> > >>>> >> Andrija Panić > >>>> >> > >>>> >> _______________________________________________ > >>>> >> ceph-users mailing list > >>>> >> ceph-users@lists.ceph.com > >>>> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>>> >> > >>> > >>> > >> >
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